Homeobox Genes Exhibit Evolutionary Conserved Regionalization in the Central Nervous System of an Ascidian Larva
スポンサーリンク
概要
- 論文の詳細を見る
Animals in each subgroup of the phylum Chordata exhibit a similar process by which they form a tubular central nervous system (CNS). However, little is known about spatial relationship among the CNSs of chordates; vertebrates, cephalochordates and urochordates (tunicates). Ascidians constitute a major animal group in the subphylum Urochordata. In the present study, we examined the expression patterns of labial and orthodenticle related genes of the ascidian, Halocynthia roretzi, in the developing larval CNS. These homeobox genes exhibited region-specific expression patterns that are strikingly similar to those of murine Hoxb-1 and Otx2. The regionalization as characterized by the expression of these genes supports the division of the ascidian larval CNS suggested by the previous morphological studies. Furthermore, conservation of the expression pattern of the homeobox genes suggests that such regionalization occurred in the CNS of a putative common ancestor of chordates.
- 社団法人日本動物学会の論文
- 1996-06-15
著者
-
WADA SHUICHI
Department of Internal Medicine, Nagano Red Cross Hospital
-
Wada Shuichi
Department Of Biology Faculty Of Science Tokyo Metropolitan University
-
Wada Shuichi
Department Of Biological Sciences Graduate School Of Science Tokyo Metropolitan University
-
Saiga Hidetoshi
Department of Biological Sciences, Graduate School of Science, Tokyo Metropolitan University
-
Saiga H
Division Of Biological Sciences Tokyo Metropolitan University
-
Wada S
Kyoto Municipal Zoo
-
KATSUYAMA You
Department of Biology, Faculty of Science, Tokyo Metropolitan University
-
Katsuyama You
Molecular Neurobiology Group Neuroscience Research Institute
-
Katsuyama Y
Tokyo Metropolitan Univ. Tokyo Jpn
-
Katsuyama You
Department Of Biological Sciences Graduate School Of Science Tokyo Metropolitan University
-
Saiga Hidetoshi
Department Of Biological Sciences Graduate School Of Science Tokyo Metropolitan University
関連論文
- Relationship Between Body Temperature and Ovarian Cycle in Asian and African Elephants
- Hemorrhagic rectal ulcer caused by a deformity of the coccyx complicated by normal delivery
- LEFT-RIGHT DETERMINATION IN CONJOINED TWINS OF THE LANCELET EMBRYO(Developmental Biology)(Proceedings of the Seventy-Third Annual Meeting of the Zoological Society of Japan)
- β-Catenin in early development of the lancelet embryo indicates specific determination of embryonic polarity
- Specificities of the Early Body Formation in the Lancelet Embryo
- Cloning and Embryonic Expression of Bblim3, a LIM Homeobox Gene in Amphioxus (Branchiostoma belcheri tsingtauense)
- ANALYSIS OF THE FUNCTION OF Hox GENES IN CIONA INTESTINALIS(Developmental Biology,Abstracts of papers presented at the 76^ Annual Meeting of the Zoological Society of Japan)
- Fluorescent in situ hybridization to ascidian chromosomes
- Exfoliative Cytology in Vaginal Vestibule of Female Asian Elephants: Relation to Circulating progesterone Concentrations : Reproductive Biology
- The ascidian embryo: An experimental system for studying genetic circuitry for embryonic cell specification and morphogenesis
- Homeobox Genes Exhibit Evolutionary Conserved Regionalization in the Central Nervous System of an Ascidian Larva
- Comparison of proliferative activities and metastases between two subtypes classified at the deeply infiltrating sites of colorectal moderately differentiated adenocarcinomas
- Functional analysis of synaptotagmin gene regulatory regions in two distantly related ascidian species
- COMPARATIVE ANALYSIS OF SYNAPTOTAGMIN PROMOTER BETWEEN TWO ASCIDIAN SPECIES(Genetics,Abstracts of papers presented at the 74^ Annual Meeting of the Zoological Society of Japan)
- Early specification of intestinal epithelium in the chicken embryo: A study on the localization and regulation of CdxA expression
- Primary structure, functional characterization and developmental expression of the ascidian Kv4-class potassium channel
- Retinoic acid affects patterning along the anterior-posterior axis of the ascidian embryo
- Cloning and embryonic expression of Hrsna, a snail family gene of the ascidian Halocynthia roretzi: Implication in the origins of mechanisms for mesoderm specification and body axis formation in chordates
- A PSEUDOGENE OF NOT IN CIONA INTESTINALIS(Developmental Biology)(Proceedings of the Seventy-Third Annual Meeting of the Zoological Society of Japan)
- FUNCTIONAL ANALYSIS OF HRPITX, THE HOMOLOG OF VERTEBRATE PITX GENES IN THE DEVELOPMENT OF THE ASCIDIAN, HALOCYNTHIA RORETZI(Developmental Biology)(Proceedings of the Seventy-Third Annual Meeting of the Zoological Society of Japan)
- Homeobox Genes and Axis Formation in the Ascidian Embryos
- Transcription regulatory mechanism of Pitx in the papilla-forming region in the ascidian, Halocynthia roretzi, implies conserved involvement of Otx as the upstream gene in the adhesive organ development of chordates